FR2429520A1 - Amplificateur-declencheur - Google Patents

Amplificateur-declencheur

Info

Publication number
FR2429520A1
FR2429520A1 FR7916144A FR7916144A FR2429520A1 FR 2429520 A1 FR2429520 A1 FR 2429520A1 FR 7916144 A FR7916144 A FR 7916144A FR 7916144 A FR7916144 A FR 7916144A FR 2429520 A1 FR2429520 A1 FR 2429520A1
Authority
FR
France
Prior art keywords
threshold value
input signal
amplifier
trigger
potential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7916144A
Other languages
English (en)
Other versions
FR2429520B3 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2429520A1 publication Critical patent/FR2429520A1/fr
Application granted granted Critical
Publication of FR2429520B3 publication Critical patent/FR2429520B3/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/061—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle pick-up devices without mechanical contacts
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
    • H03K3/2893—Bistables with hysteresis, e.g. Schmitt trigger

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Amplifiers (AREA)

Abstract

a. Amplificateur-déclencheur. b. Amplificateur-déclencheur caractérisé en ce que l'étage de commutation à l'état de repos est réglé sur une première valeur de seuil qui est franchie vers le haut par la première demi-onde du signal d'entrée, tandis que la branche determinant la valeur de seuil de l'étage de commutation, comporte un commutateur couplé avec la sortie de l'étage d'amplification, dont l'état de conduction est modifié en meme temps que l'état de conduction de l'étage d'amplification, et qui, de ce fait, lors du franchissement vers le haut de la valeur de seuil par le signal d'entrée, provoque une modification de la valeur de seuil sur un potentiel coïncidant pour l'essentiel avec le potentiel du passage par zéro entre les demi-ondes du signal d'entrée, si bien que le retour à l'état de repos s'effectue au moins approximativement à l'instant du passage par zéro du signal d'entrée. L'invention s'applique notamment au contrôle du fonctionnement des moteurs à combustion interne.
FR7916144A 1978-06-24 1979-06-22 Amplificateur-declencheur Granted FR2429520A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2827868A DE2827868C2 (de) 1978-06-24 1978-06-24 Triggerverstärker

Publications (2)

Publication Number Publication Date
FR2429520A1 true FR2429520A1 (fr) 1980-01-18
FR2429520B3 FR2429520B3 (fr) 1982-05-28

Family

ID=6042713

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7916144A Granted FR2429520A1 (fr) 1978-06-24 1979-06-22 Amplificateur-declencheur

Country Status (3)

Country Link
US (1) US4311924A (fr)
DE (1) DE2827868C2 (fr)
FR (1) FR2429520A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125257A1 (fr) * 1982-11-17 1984-11-21 Motorola, Inc. Circuit a trigger de schmitt
FR2617241A1 (fr) * 1987-06-26 1988-12-30 Renault Dispositif de detection d'anomalie de signal dans un systeme d'allumage-injection electronique

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2847290C2 (de) * 1978-10-31 1986-09-04 Robert Bosch Gmbh, 7000 Stuttgart Schaltungsanordnung zum Gewinnen eines störungsfreien Triggersignales für insbesondere eine Kraftstoffzumeßeinrichtung einer Brennkraftmaschine
JPS58120170A (ja) * 1982-01-13 1983-07-16 Toshiba Corp 交流電流検出回路
DE3433777A1 (de) * 1984-09-14 1986-03-27 Robert Bosch Gmbh, 7000 Stuttgart Impulsformer fuer induktive geber
NZ243294A (en) * 1991-06-25 1995-04-27 Commw Scient Ind Res Org Time of flight of acoustic wave packets through fluid: reduction of higher order acoustic mode effects
DE19929557B4 (de) * 1999-06-18 2006-01-19 Dr. Johannes Heidenhain Gmbh Verfahren und Schaltkreis zur Einstellung einer Schaltschwelle eines Tastschalters
CA2623061A1 (fr) * 2007-03-02 2008-09-02 Sean C. Carroll Circuit de passage a zero

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1312238A (en) * 1969-07-25 1973-04-04 Mullard Ltd Transistor amplifier and limiter circuits
JPS4853315U (fr) * 1971-10-21 1973-07-10

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125257A1 (fr) * 1982-11-17 1984-11-21 Motorola, Inc. Circuit a trigger de schmitt
EP0125257A4 (fr) * 1982-11-17 1987-03-03 Motorola Inc Circuit a trigger de schmitt.
FR2617241A1 (fr) * 1987-06-26 1988-12-30 Renault Dispositif de detection d'anomalie de signal dans un systeme d'allumage-injection electronique
EP0298824A1 (fr) * 1987-06-26 1989-01-11 Regie Nationale Des Usines Renault Dispositif de détection d'anomalie de signal dans un système d'allumage-injection électronique

Also Published As

Publication number Publication date
US4311924A (en) 1982-01-19
DE2827868C2 (de) 1985-10-24
FR2429520B3 (fr) 1982-05-28
DE2827868A1 (de) 1980-01-17

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